Contract 0x85667Fc746a388f47518996B0724d1Ff2505D716

//SPDX-License-Identifier: MIT
pragma solidity >=0.8.4;

import "./BaseRegistrarController.sol";
import "./ICRORegistrarTokenController.sol";
import "../tokens/ICROIDToken.sol";

/**
 * @dev A registrar controller for registering and renewing names with paying CROID tokens at fixed cost.
 */
contract CRORegistrarTokenController is BaseRegistrarController {
    ICROIDToken public immutable token;

    constructor(
        ICROIDToken _token,
        IBaseRegistrar _registrar,
        IPriceOracle _priceOracle,
        ReverseRegistrar _reverseRegistrar
    ) BaseRegistrarController(_registrar, _priceOracle, _reverseRegistrar) {
        token = _token;
    }

    function valid(string memory name) public view override returns (bool) {
        if (strLength(name) >= 5) {
            return false;
        }

        return super.valid(name);
    }

    function register(
        string calldata name,
        address owner,
        uint256 duration,
        bytes32 secret,
        address resolver,
        bytes[] calldata data,
        bool reverseRecord
    ) public {
        bytes32 label = keccak256(bytes(name));
        IPriceOracle.Price memory price = rentPrice(name, duration);
        uint256 tokenAmount = price.base + price.premium;

        require(
            token.transferFrom(msg.sender, address(this), tokenAmount),
            "CRORegistrarTokenController: Not enough CROID token provided"
        );

        _consumeCommitment(
            name,
            duration,
            makeCommitment(
                name,
                owner,
                duration,
                secret,
                resolver,
                data,
                reverseRecord
            )
        );

        uint256 expires = registrar.registerExtra(
            uint256(label),
            owner,
            duration,
            resolver,
            uint64(0)
        );

        _setRecords(resolver, label, data);

        if (reverseRecord) {
            _setReverseRecord(name, resolver, msg.sender);
        }

        _distributeRevenue(tokenAmount);

        emit NameRegistered(
            name,
            label,
            owner,
            price.base,
            price.premium,
            expires
        );
    }

    function renew(string calldata name, uint256 duration) external {
        bytes32 label = keccak256(bytes(name));
        IPriceOracle.Price memory price = rentPrice(name, duration);
        uint256 tokenAmount = price.base;

        require(
            token.transferFrom(msg.sender, address(this), tokenAmount),
            "CRORegistrarTokenController: Not enough CROID token provided for renewal"
        );

        uint256 expires = registrar.renew(uint256(label), duration);

        _distributeRevenue(tokenAmount);

        emit NameRenewed(name, label, price.base, expires);
    }

    function supportsInterface(bytes4 interfaceID)
        external
        pure
        override
        returns (bool)
    {
        return
            interfaceID == type(IERC165).interfaceId ||
            interfaceID == type(ICRORegistrarTokenController).interfaceId;
    }

    function _distributeRevenue(uint256 tokenAmount) internal override {
        if (address(revenueDistributor) != address(0)) {
            // NOTICE: Is it good practice if let user approve the revenueDistributor contract directly in UI?
            token.approve(address(revenueDistributor), tokenAmount);

            revenueDistributor.depositToken(tokenAmount);
        }
    }

    function _heldRevenue() internal view override returns (uint256) {
        return token.balanceOf(address(this));
    }
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4;

import "./IBaseRegistrarController.sol";

interface ICRORegistrarTokenController is IBaseRegistrarController {
    function register(
        string calldata,
        address,
        uint256,
        bytes32,
        address,
        bytes[] calldata,
        bool
    ) external;

    function renew(string calldata, uint256) external;
}

//SPDX-License-Identifier: MIT
pragma solidity >=0.8.4;

import "./IBaseRegistrar.sol";
import "./IBaseRegistrarController.sol";
import "../oracles/IPriceOracle.sol";
import "../registrars/ReverseRegistrar.sol";
import "../utils/StringUtils.sol";
import "../utils/Blocklist.sol";
import "../tokens/IRevenueDistributor.sol";

import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/introspection/IERC165.sol";
import "@openzeppelin/contracts/utils/Address.sol";

/**
 * @dev A base registrar controller for registering and renewing names.
 */
abstract contract BaseRegistrarController is Ownable, IBaseRegistrarController {
    using StringUtils for *;
    using Address for address;

    uint256 public constant MIN_REGISTRATION_DURATION = 28 days;
    string private constant CRO_LABEL = "cro";
    bytes32 private constant CRO_NODE =
        0x5dfacd0a0764eb7c9351dcd36f63cb5e2757014aa2592f976462be5c38ce9ca8;
    uint256 public constant MIN_COMMITMENT_AGE = 60; // 60 seconds
    uint256 public constant MAX_COMMITMENT_AGE = 24 * 60 * 60; // 24 hours

    IBaseRegistrar public immutable registrar;

    ReverseRegistrar public reverseRegistrar;
    IPriceOracle public priceOracle;
    Blocklist public blocklist;
    IRevenueDistributor public revenueDistributor;
    bool public chanceRequired;

    mapping(bytes32 => uint256) public commitments;

    event NameRegistered(
        string name,
        bytes32 indexed label,
        address indexed owner,
        uint256 baseCost,
        uint256 premium,
        uint256 expires
    );

    event NameRenewed(
        string name,
        bytes32 indexed label,
        uint256 cost,
        uint256 expires
    );

    event ReverseRegistrarChanged(address indexed reverseRegistrar);

    event PriceOracleChanged(address indexed priceOracle);

    event BlocklistChanged(address indexed blocklist);

    event RevenueDistributorChanged(address indexed revenueDistributor);

    event ChanceRequiredChanged(bool required);

    constructor(
        IBaseRegistrar _registrar,
        IPriceOracle _priceOracle,
        ReverseRegistrar _reverseRegistrar
    ) {
        registrar = _registrar;
        priceOracle = _priceOracle;
        reverseRegistrar = _reverseRegistrar;
        chanceRequired = false;
    }

    function rentPrice(string memory name, uint256 duration)
        public
        view
        virtual
        override
        returns (IPriceOracle.Price memory price)
    {
        bytes32 label = keccak256(bytes(name));
        price = priceOracle.price(
            name,
            registrar.nameExpires(uint256(label)),
            duration
        );
    }

    function valid(string memory name)
        public
        view
        virtual
        override
        returns (bool)
    {
        if (strLength(name) < 3) {
            return false;
        }

        if (address(blocklist) != address(0)) {
            if (blocklist.hasName(name, msg.sender)) {
                return false;
            }
        }

        return true;
    }

    function available(string memory name)
        public
        view
        virtual
        override
        returns (bool)
    {
        bytes32 label = keccak256(bytes(name));
        return valid(name) && registrar.available(uint256(label));
    }

    function strLength(string memory name)
        public
        view
        virtual
        override
        returns (uint256)
    {
        return name.strlen();
    }

    function makeCommitment(
        string memory name,
        address owner,
        uint256 duration,
        bytes32 secret,
        address resolver,
        bytes[] calldata data,
        bool reverseRecord
    ) public pure virtual override returns (bytes32) {
        bytes32 label = keccak256(bytes(name));
        if (data.length > 0) {
            require(
                resolver != address(0),
                "BaseRegistrarController: resolver is required when data is supplied"
            );
        }
        return
            keccak256(
                abi.encode(
                    label,
                    owner,
                    duration,
                    resolver,
                    data,
                    secret,
                    reverseRecord
                )
            );
    }

    function commit(bytes32 commitment) public virtual override {
        require(commitments[commitment] + MAX_COMMITMENT_AGE < block.timestamp, "BaseRegistrarController: invalid commitment");
        commitments[commitment] = block.timestamp;
    }

    function setReverseRegistrar(address _reverseRegistrar) external onlyOwner {
        reverseRegistrar = ReverseRegistrar(_reverseRegistrar);
        emit ReverseRegistrarChanged(_reverseRegistrar);
    }

    function setPriceOracle(address _priceOracle) external onlyOwner {
        priceOracle = IPriceOracle(_priceOracle);
        emit PriceOracleChanged(_priceOracle);
    }

    function setBlocklist(address _blocklist) external onlyOwner {
        blocklist = Blocklist(_blocklist);
        emit BlocklistChanged(_blocklist);
    }

    function setRevenueDistributor(address _revenueDistributor)
        external
        onlyOwner
    {
        revenueDistributor = IRevenueDistributor(_revenueDistributor);
        emit RevenueDistributorChanged(_revenueDistributor);
    }

    function setChanceRequired(bool _required) external onlyOwner {
        chanceRequired = _required;
        emit ChanceRequiredChanged(_required);
    }

    function distributeHeldRevenue() external onlyOwner {
        _distributeRevenue(_heldRevenue());
    }

    function minCommitmentAge() public pure returns (uint256) {
        return MIN_COMMITMENT_AGE;
    }

    function maxCommitmentAge() public pure returns (uint256) {
        return MAX_COMMITMENT_AGE;
    }

    function supportsInterface(bytes4 interfaceID)
        external
        pure
        virtual
        returns (bool)
    {
        return
            interfaceID == type(IERC165).interfaceId ||
            interfaceID == type(IBaseRegistrarController).interfaceId;
    }

    /* Internal functions */

    function _consumeCommitment(
        string memory name,
        uint256 duration,
        bytes32 commitment
    ) internal {
        // Require a valid commitment (is old enough and is committed)
        require(
            commitments[commitment] + MIN_COMMITMENT_AGE <= block.timestamp,
            "BaseRegistrarController: Commitment is not valid"
        );

        // If the commitment is too old, or the name is registered, stop
        require(
            commitments[commitment] + MAX_COMMITMENT_AGE > block.timestamp,
            "BaseRegistrarController: Commitment has expired"
        );

        require(
            available(name),
            "BaseRegistrarController: Name is unavailable"
        );

        if (chanceRequired && strLength(name) < 5) {
            if (address(blocklist) != address(0)) {
                blocklist.checkChance(name, msg.sender);
            }
        }

        delete commitments[commitment];

        require(duration >= MIN_REGISTRATION_DURATION);
    }

    function _setRecords(
        address resolver,
        bytes32 label,
        bytes[] calldata data
    ) internal {
        bytes32 nodehash = keccak256(abi.encodePacked(CRO_NODE, label));
        for (uint256 i = 0; i < data.length; i++) {
            // check first few bytes are namehash
            bytes32 txNamehash = bytes32(data[i][4:36]);
            require(
                txNamehash == nodehash,
                "BaseRegistrarController: Namehash on record do not match the name being registered"
            );
            resolver.functionCall(
                data[i],
                "BaseRegistrarController: Failed to set Record"
            );
        }
    }

    function _setReverseRecord(
        string memory name,
        address resolver,
        address owner
    ) internal {
        reverseRegistrar.setNameForAddr(
            msg.sender,
            owner,
            resolver,
            string.concat(name, ".", CRO_LABEL)
        );
    }

    function _heldRevenue() internal view virtual returns (uint256) {
        return 0;
    }

    function _distributeRevenue(uint256) internal virtual {
        require(
            false,
            "BaseRegistrarController: unimplemented distributing method"
        );
    }
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol";
import "@openzeppelin/contracts/token/ERC20/extensions/draft-IERC20Permit.sol";

interface ICROIDToken is IERC20, IERC20Metadata, IERC20Permit { 

    function getDeploymentStartTime() external view returns (uint256);
    
    function burn(uint256 amount) external;
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4;

import "../oracles/IPriceOracle.sol";

interface IBaseRegistrarController {
    function rentPrice(string memory, uint256)
        external
        returns (IPriceOracle.Price memory);

    function valid(string memory) external returns (bool);

    function available(string memory) external returns (bool);

    function strLength(string memory) external returns (uint256);

    function makeCommitment(
        string memory,
        address,
        uint256,
        bytes32,
        address,
        bytes[] calldata,
        bool
    ) external returns (bytes32);

    function commit(bytes32) external;
}

//SPDX-License-Identifier: MIT
pragma solidity >=0.8.4;

interface IPriceOracle {
    struct Price {
        uint256 base;
        uint256 premium;
    }

    /**
     * @dev Returns the price to register or renew a name.
     * @param name The name being registered or renewed.
     * @param expires When the name presently expires (0 if this is a new registration).
     * @param duration How long the name is being registered or extended for, in seconds.
     * @return base premium tuple of base price + premium price
     */
    function price(
        string calldata name,
        uint256 expires,
        uint256 duration
    ) external view returns (Price calldata);
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4;

import "../CROID.sol";
import "./IBaseRegistrar.sol";
import "@openzeppelin/contracts/token/ERC721/IERC721.sol";

interface IBaseRegistrar is IERC721 {
    event ControllerAdded(address indexed controller);
    event ControllerRemoved(address indexed controller);
    event NameMigrated(
        uint256 indexed id,
        address indexed owner,
        uint256 expires
    );
    event NameRegistered(
        uint256 indexed id,
        address indexed owner,
        uint256 expires
    );
    event NameRenewed(uint256 indexed id, uint256 expires);

    // Authorises a controller, who can register and renew domains.
    function addController(address controller) external;

    // Revoke controller permission for an address.
    function removeController(address controller) external;

    // Set the resolver for the TLD this registrar manages.
    function setResolver(address resolver) external;

    // Returns the expiration timestamp of the specified label hash.
    function nameExpires(uint256 id) external view returns (uint256);

    // Returns true iff the specified name is available for registration.
    function available(uint256 id) external view returns (bool);

    /**
     * @dev Register a name.
     */
    function register(
        uint256 id,
        address owner,
        uint256 duration
    ) external returns (uint256);

    /**
     * @dev Register a name only.
     */
    function registerOnly(
        uint256 id,
        address owner,
        uint256 duration
    ) external returns (uint256);

    /**
     * @dev Register a name with extra parameters, resolver and ttl.
     */
    function registerExtra(
        uint256 id,
        address owner,
        uint256 duration,
        address resolver,
        uint64 ttl
    ) external returns (uint256);

    function renew(uint256 id, uint256 duration) external returns (uint256);

    /**
     * @dev Reclaim ownership of a name in CROID, if you own it in the registrar.
     */
    function reclaim(uint256 id, address owner) external;
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4;

import "../CROID.sol";
import "./IReverseRegistrar.sol";
import "../resolvers/IResolver.sol";
import "../utils/Controllable.sol";
import "@openzeppelin/contracts/access/Ownable.sol";

bytes32 constant lookup = 0x3031323334353637383961626364656600000000000000000000000000000000;

// namehash('addr.reverse')
bytes32 constant ADDR_REVERSE_NODE = 0x91d1777781884d03a6757a803996e38de2a42967fb37eeaca72729271025a9e2;

contract ReverseRegistrar is Ownable, Controllable, IReverseRegistrar {
    CROID public immutable croid;
    IResolver public defaultResolver;

    event ReverseClaimed(address indexed addr, bytes32 indexed node);

    event ResolverChanged(address indexed resolver);

    /**
     * @dev Constructor
     * @param _croid The address of the CROID registry.
     */
    constructor(CROID _croid) {
        croid = _croid;

        // Assign ownership of the reverse record to our deployer
        ReverseRegistrar oldRegistrar = ReverseRegistrar(
            _croid.owner(ADDR_REVERSE_NODE)
        );
        if (address(oldRegistrar) != address(0x0)) {
            oldRegistrar.claim(msg.sender);
        }
    }

    modifier authorised(address addr) {
        require(
            addr == msg.sender ||
                controllers[msg.sender] ||
                croid.isApprovedForAll(addr, msg.sender) ||
                ownsContract(addr),
            "ReverseRegistrar: Caller is not a controller or authorised by address or the address itself"
        );
        _;
    }

    function setDefaultResolver(address resolver) public override onlyOwner {
        require(
            address(resolver) != address(0),
            "ReverseRegistrar: Resolver address must not be 0"
        );
        defaultResolver = IResolver(resolver);
        emit ResolverChanged(resolver);
    }

    /**
     * @dev Transfers ownership of the reverse CROID record associated with the
     *      calling account.
     * @param owner The address to set as the owner of the reverse record in CROID.
     * @return The CROID node hash of the reverse record.
     */
    function claim(address owner) public override returns (bytes32) {
        return claimForAddr(msg.sender, owner, address(defaultResolver));
    }

    /**
     * @dev Transfers ownership of the reverse CROID record associated with the
     *      calling account.
     * @param addr The reverse record to set
     * @param owner The address to set as the owner of the reverse record in CROID.
     * @return The CROID node hash of the reverse record.
     */
    function claimForAddr(
        address addr,
        address owner,
        address resolver
    ) public override authorised(addr) returns (bytes32) {
        bytes32 labelHash = sha3HexAddress(addr);
        bytes32 reverseNode = keccak256(
            abi.encodePacked(ADDR_REVERSE_NODE, labelHash)
        );
        emit ReverseClaimed(addr, reverseNode);
        croid.setSubnodeRecord(ADDR_REVERSE_NODE, labelHash, owner, resolver, 0);
        return reverseNode;
    }

    /**
     * @dev Transfers ownership of the reverse CROID record associated with the
     *      calling account.
     * @param owner The address to set as the owner of the reverse record in CROID.
     * @param resolver The address of the resolver to set; 0 to leave unchanged.
     * @return The CROID node hash of the reverse record.
     */
    function claimWithResolver(address owner, address resolver)
        public
        override
        returns (bytes32)
    {
        return claimForAddr(msg.sender, owner, resolver);
    }

    /**
     * @dev Sets the `name()` record for the reverse CROID record associated with
     * the calling account. First updates the resolver to the default reverse
     * resolver if necessary.
     * @param name The name to set for this address.
     * @return The CROID node hash of the reverse record.
     */
    function setName(string memory name) public override returns (bytes32) {
        return
            setNameForAddr(
                msg.sender,
                msg.sender,
                address(defaultResolver),
                name
            );
    }

    function setNameOnly(
        address addr,
        address resolver,
        string memory name
    ) external override authorised(addr) returns (bytes32) {
        if (resolver == address(0x0)) {
            resolver = address(defaultResolver);
        }

        bytes32 reverseNode = node(addr);
        IResolver(resolver).setName(reverseNode, name);
        return reverseNode;
    }

    /**
     * @dev Sets the `name()` record for the reverse CROID record associated with
     * the account provided. First updates the resolver to the default reverse
     * resolver if necessary.
     * Only callable by controllers and authorised users
     * @param addr The reverse record to set
     * @param owner The owner of the reverse node
     * @param name The name to set for this address.
     * @return The CROID node hash of the reverse record.
     */
    function setNameForAddr(
        address addr,
        address owner,
        address resolver,
        string memory name
    ) public override returns (bytes32) {
        if (resolver == address(0x0)) {
            resolver = address(defaultResolver);
        }

        bytes32 reverseNode = claimForAddr(addr, owner, resolver);
        IResolver(resolver).setName(reverseNode, name);
        return reverseNode;
    }

    /**
     * @dev Returns the node hash for a given account's reverse records.
     * @param addr The address to hash
     * @return The CROID node hash.
     */
    function node(address addr) public pure override returns (bytes32) {
        return
            keccak256(
                abi.encodePacked(ADDR_REVERSE_NODE, sha3HexAddress(addr))
            );
    }

    /**
     * @dev An optimised function to compute the sha3 of the lower-case
     *      hexadecimal representation of an Cronos address.
     * @param addr The address to hash
     * @return ret The SHA3 hash of the lower-case hexadecimal encoding of the
     *         input address.
     */
    function sha3HexAddress(address addr) private pure returns (bytes32 ret) {
        assembly {
            for {
                let i := 40
            } gt(i, 0) {

            } {
                i := sub(i, 1)
                mstore8(i, byte(and(addr, 0xf), lookup))
                addr := div(addr, 0x10)
                i := sub(i, 1)
                mstore8(i, byte(and(addr, 0xf), lookup))
                addr := div(addr, 0x10)
            }

            ret := keccak256(0, 40)
        }
    }

    function ownsContract(address addr) internal view returns (bool) {
        try Ownable(addr).owner() returns (address owner) {
            return owner == msg.sender;
        } catch {
            return false;
        }
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

import "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
import "../utils/StringUtils.sol";

contract Blocklist is UUPSUpgradeable, OwnableUpgradeable {
    using StringUtils for *;

    bool public enabled;
    mapping(bytes32 => bool) private _list;
    mapping(address => mapping(bytes32 => bool)) private _allows;
    mapping(address => bool) private _checkers;
    mapping(address => uint256) private _chances;

    event EnabledChange(bool enabled);
    event CheckerChange(address checker, bool enabled);

    function initialize() initializer public {
        __Ownable_init();
        __UUPSUpgradeable_init();

        enabled = true;
    }

    function has(bytes32 label, address user) public view returns (bool) {
        if (enabled != true) {
            return false;
        }

        if (_list[label] != true) {
            return false;
        }

        if (user == address(0)) {
            user = msg.sender;
        }

        // allow target users
        if (_allows[user][label] == true) {
            return false;
        }

        return true;
    }

    function hasName(string memory name, address user) public view returns (bool result) {
        uint256 length = name.strlen();

        // if all chars are from ASCII
        if (length == bytes(name).length) {
            name = name.toLower();
        }

        bytes32 label = keccak256(bytes(name));
        result = has(label, user);
    }

    function checkChance(string memory, address user) public {
        require(_checkers[msg.sender], "sender is not authorized to check");
        require(_chances[user] > 0, "user has no more chances");

        _chances[user] -= 1;
    }

    function update(bytes32 label, bool blocked) external onlyOwner() {
        _list[label] = blocked;
    }

    function batchUpdate(bytes32[] calldata labels, bool blocked) external onlyOwner() {
        for (uint i = 0; i < labels.length; i++) {
            _list[labels[i]] = blocked;
        }
    }

    function batchDelete(bytes32[] calldata labels) external onlyOwner() {
        for (uint i = 0; i < labels.length; i++) {
            delete _list[labels[i]];
        }
    }

    function allowed(address user, bytes32 label) public view returns (bool) {
        return _allows[user][label];
    }

    function allow(address user, bytes32[] calldata labels) external onlyOwner() {
        for (uint i = 0; i < labels.length; i++) {
            _allows[user][labels[i]] = true;
        }
    }

    function disallow(address user, bytes32[] calldata labels) external onlyOwner() {
        for (uint i = 0; i < labels.length; i++) {
            delete _allows[user][labels[i]];
        }
    }

    function batchAllow(address[] calldata users, bytes32[] calldata labels) external onlyOwner() {
        for (uint i = 0; i < users.length; i++) {
            _allows[users[i]][labels[i]] = true;
        }
    }

    function batchDisallow(address[] calldata users, bytes32[] calldata labels) external onlyOwner() {
        for (uint i = 0; i < users.length; i++) {
            delete _allows[users[i]][labels[i]];
        }
    }

    function enable() external onlyOwner() {
        enabled = true;
        emit EnabledChange(enabled);
    }

    function disable() external onlyOwner() {
        enabled = false;
        emit EnabledChange(enabled);
    }

    function checker(address _checker) public view returns (bool) {
        return _checkers[_checker];
    }

    function setChecker(address _checker, bool _enabled) external onlyOwner() {
        _checkers[_checker] = _enabled;
        emit CheckerChange(_checker, _enabled);
    }

    function updateChance(address user, uint256 number) external onlyOwner() {
        _chances[user] = number;
    }

    function batchUpdateChance(address[] calldata users, uint256 number) external onlyOwner() {
        for (uint i = 0; i < users.length; i++) {
            _chances[users[i]] = number;
        }
    }

    function batchSyncChance(address[] calldata users, uint256[] calldata numbers) external onlyOwner() {
        for (uint i = 0; i < users.length; i++) {
            _chances[users[i]] = numbers[i];
        }
    }

    function chance(address user) public view returns (uint256) {
        return _chances[user];
    }

    function _authorizeUpgrade(address) internal override onlyOwner {}
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4;

library StringUtils {
    /**
     * @dev Returns the length of a given string
     *
     * @param s The string to measure the length of
     * @return The length of the input string
     */
    function strlen(string memory s) internal pure returns (uint) {
        uint len;
        uint i = 0;
        uint bytelength = bytes(s).length;
        for(len = 0; i < bytelength; len++) {
            bytes1 b = bytes(s)[i];
            if(b < 0x80) {
                i += 1;
            } else if (b < 0xE0) {
                i += 2;
            } else if (b < 0xF0) {
                i += 3;
            } else if (b < 0xF8) {
                i += 4;
            } else if (b < 0xFC) {
                i += 5;
            } else {
                i += 6;
            }
        }
        return len;
    }

    function toLower(string memory s) internal pure returns (string memory) {
        bytes memory bstr = bytes(s);
        bytes memory blower = new bytes(bstr.length);
        for (uint i = 0; i < bstr.length; i++) {
            if ((uint8(bstr[i]) >= 65) && (uint8(bstr[i]) <= 90)) {
                blower[i] = bytes1(uint8(bstr[i]) + 32);
            } else {
                blower[i] = bstr[i];
            }
        }
        return string(blower);
    }

    function toUpper(string memory s) internal pure returns (string memory) {
        bytes memory bstr = bytes(s);
        bytes memory bupper = new bytes(bstr.length);
        for (uint i = 0; i < bstr.length; i++) {
            if ((uint8(bstr[i]) >= 97) && (uint8(bstr[i]) <= 122)) {
                bupper[i] = bytes1(uint8(bstr[i]) - 32);
            } else {
                bupper[i] = bstr[i];
            }
        }
        return string(bupper);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4;

interface IRevenueDistributor {
    function deposit() external payable;

    function depositToken(uint256 tokenAmount) external;

    function setRevenueBeneficiary(address _revenueBeneficiary) external;

    function setStakingDistributor(address _stakingDistributor) external;

    function setTokenSwapRouter(
        address _tokenSwapRouter,
        address[] memory _tokenSwapPaths
    ) external;

    function allocatePendingRevenue() external;

    function allocatePendingStaking() external;

    function allocatePendingBurning() external;

    function allocateAllPendings() external;

    function allocatePendingRevenueToken() external;

    function allocatePendingStakingToken() external;

    function allocateAllPendingTokens() external;

    function getUnlockedStakingAmount() view external returns(uint256);

    function getUnlockedStakingTokenAmount() view external returns(uint256);

    
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4;

interface CROID {
    // Logged when the owner of a node assigns a new owner to a subnode.
    event NewOwner(bytes32 indexed node, bytes32 indexed label, address owner);

    // Logged when the owner of a node transfers ownership to a new account.
    event Transfer(bytes32 indexed node, address owner);

    // Logged when the resolver for a node changes.
    event NewResolver(bytes32 indexed node, address resolver);

    // Logged when the TTL of a node changes
    event NewTTL(bytes32 indexed node, uint64 ttl);

    // Logged when an operator is added or removed.
    event ApprovalForAll(
        address indexed owner,
        address indexed operator,
        bool approved
    );

    function setRecord(
        bytes32 node,
        address owner,
        address resolver,
        uint64 ttl
    ) external;

    function setSubnodeRecord(
        bytes32 node,
        bytes32 label,
        address owner,
        address resolver,
        uint64 ttl
    ) external;

    function setSubnodeOwner(
        bytes32 node,
        bytes32 label,
        address owner
    ) external returns (bytes32);

    function setResolver(bytes32 node, address resolver) external;

    function setOwner(bytes32 node, address owner) external;

    function setTTL(bytes32 node, uint64 ttl) external;

    function setApprovalForAll(address operator, bool approved) external;

    function owner(bytes32 node) external view returns (address);

    function resolver(bytes32 node) external view returns (address);

    function ttl(bytes32 node) external view returns (uint64);

    function recordExists(bytes32 node) external view returns (bool);

    function isApprovedForAll(address owner, address operator)
        external
        view
        returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721.sol)

pragma solidity ^0.8.0;

import "../../utils/introspection/IERC165.sol";

/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721 is IERC165 {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);

    /**
     * @dev Returns the number of tokens in ``owner``'s account.
     */
    function balanceOf(address owner) external view returns (uint256 balance);

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes calldata data
    ) external;

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function approve(address to, uint256 tokenId) external;

    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the caller.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool _approved) external;

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}
     */
    function isApprovedForAll(address owner, address operator) external view returns (bool);
}

//SPDX-License-Identifier: MIT
pragma solidity >=0.8.4;

import "@openzeppelin/contracts/utils/introspection/IERC165.sol";
import "./profiles/IABIResolver.sol";
import "./profiles/IAddressResolver.sol";
import "./profiles/IAddrResolver.sol";
import "./profiles/IContentHashResolver.sol";
import "./profiles/IDNSRecordResolver.sol";
import "./profiles/IDNSZoneResolver.sol";
import "./profiles/IInterfaceResolver.sol";
import "./profiles/INameResolver.sol";
import "./profiles/IPubkeyResolver.sol";
import "./profiles/ITextResolver.sol";
import "./profiles/IExtendedResolver.sol";

/**
 * A generic resolver interface which includes all the functions including the ones deprecated
 */
interface IResolver is
    IERC165,
    IABIResolver,
    IAddressResolver,
    IAddrResolver,
    IContentHashResolver,
    IDNSRecordResolver,
    IDNSZoneResolver,
    IInterfaceResolver,
    INameResolver,
    IPubkeyResolver,
    ITextResolver,
    IExtendedResolver
{
    /* Deprecated events */
    event ContentChanged(bytes32 indexed node, bytes32 hash);

    function setABI(
        bytes32 node,
        uint256 contentType,
        bytes calldata data
    ) external;

    function setAddr(bytes32 node, address addr) external;

    function setAddr(
        bytes32 node,
        uint256 coinType,
        bytes calldata a
    ) external;

    function setContenthash(bytes32 node, bytes calldata hash) external;

    function setDnsrr(bytes32 node, bytes calldata data) external;

    function setName(bytes32 node, string calldata _name) external;

    function setPubkey(
        bytes32 node,
        bytes32 x,
        bytes32 y
    ) external;

    function setText(
        bytes32 node,
        string calldata key,
        string calldata value
    ) external;

    function setInterface(
        bytes32 node,
        bytes4 interfaceID,
        address implementer
    ) external;

    function multicall(bytes[] calldata data)
        external
        returns (bytes[] memory results);

    /* Deprecated functions */
    function content(bytes32 node) external view returns (bytes32);

    function multihash(bytes32 node) external view returns (bytes memory);

    function setContent(bytes32 node, bytes32 hash) external;

    function setMultihash(bytes32 node, bytes calldata hash) external;
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4;

interface IReverseRegistrar {
    function setDefaultResolver(address resolver) external;

    function claim(address owner) external returns (bytes32);

    function claimForAddr(
        address addr,
        address owner,
        address resolver
    ) external returns (bytes32);

    function claimWithResolver(address owner, address resolver)
        external
        returns (bytes32);

    function setName(string memory name) external returns (bytes32);

    function setNameOnly(
        address addr,
        address resolver,
        string memory name
    ) external returns (bytes32);

    function setNameForAddr(
        address addr,
        address owner,
        address resolver,
        string memory name
    ) external returns (bytes32);

    function node(address addr) external pure returns (bytes32);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

import "@openzeppelin/contracts/access/Ownable.sol";

contract Controllable is Ownable {
    mapping(address => bool) public controllers;

    event ControllerChanged(address indexed controller, bool enabled);

    modifier onlyController {
        require(
            controllers[msg.sender],
            "Controllable: Caller is not a controller"
        );
        _;
    }

    function setController(address controller, bool enabled) public onlyOwner {
        controllers[controller] = enabled;
        emit ControllerChanged(controller, enabled);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4;

import "./IABIResolver.sol";
import "../ResolverBase.sol";

interface IABIResolver {
    event ABIChanged(bytes32 indexed node, uint256 indexed contentType);
    /**
     * Returns the ABI associated with an CROID node.
     * Defined in EIP205.
     * @param node The CROID node to query
     * @param contentTypes A bitwise OR of the ABI formats accepted by the caller.
     * @return contentType The content type of the return value
     * @return data The ABI data
     */
    function ABI(bytes32 node, uint256 contentTypes) external view returns (uint256, bytes memory);
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4;

interface IContentHashResolver {
    event ContenthashChanged(bytes32 indexed node, bytes hash);

    /**
     * Returns the contenthash associated with an CROID node.
     * @param node The CROID node to query.
     * @return The associated contenthash.
     */
    function contenthash(bytes32 node) external view returns (bytes memory);
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4;

/**
 * Interface for the new (multicoin) addr function.
 */
interface IAddressResolver {
    event AddressChanged(bytes32 indexed node, uint coinType, bytes newAddress);

    /**
     * Returns the address associated with an CROID node.
     * @param node The CROID node to query.
     * @param coinType The coin type from slip-0044.
     * @return The associated address in bytes.
     */
    function addr(bytes32 node, uint coinType) external view returns(bytes memory);
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4;

/**
 * Interface for the basic addr function.
 */
interface IAddrResolver {
    event AddrChanged(bytes32 indexed node, address a);

    /**
     * Returns the address associated with an CROID node.
     * @param node The CROID node to query.
     * @return The associated address.
     */
    function addr(bytes32 node) external view returns (address payable);
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4;

interface IDNSRecordResolver {
    // DNSRecordChanged is emitted whenever a given node/name/resource's RRSET is updated.
    event DNSRecordChanged(bytes32 indexed node, bytes name, uint16 resource, bytes record);
    // DNSRecordDeleted is emitted whenever a given node/name/resource's RRSET is deleted.
    event DNSRecordDeleted(bytes32 indexed node, bytes name, uint16 resource);
    // DNSZoneCleared is emitted whenever a given node's zone information is cleared.
    event DNSZoneCleared(bytes32 indexed node);

    /**
     * Obtain a DNS record.
     * @param node the namehash of the node for which to fetch the record
     * @param name the keccak-256 hash of the fully-qualified name for which to fetch the record
     * @param resource the ID of the resource as per https://en.wikipedia.org/wiki/List_of_DNS_record_types
     * @return the DNS record in wire format if present, otherwise empty
     */
    function dnsRecord(bytes32 node, bytes32 name, uint16 resource) external view returns (bytes memory);
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4;

interface IInterfaceResolver {
    event InterfaceChanged(bytes32 indexed node, bytes4 indexed interfaceID, address implementer);

    /**
     * Returns the address of a contract that implements the specified interface for this name.
     * If an implementer has not been set for this interfaceID and name, the resolver will query
     * the contract at `addr()`. If `addr()` is set, a contract exists at that address, and that
     * contract implements EIP165 and returns `true` for the specified interfaceID, its address
     * will be returned.
     * @param node The CROID node to query.
     * @param interfaceID The EIP 165 interface ID to check for.
     * @return The address that implements this interface, or 0 if the interface is unsupported.
     */
    function interfaceImplementer(bytes32 node, bytes4 interfaceID) external view returns (address);
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4;

interface IDNSZoneResolver {
    // DNSZonehashChanged is emitted whenever a given node's zone hash is updated.
    event DNSZonehashChanged(bytes32 indexed node, bytes lastzonehash, bytes zonehash);

    /**
     * zonehash obtains the hash for the zone.
     * @param node The CROID node to query.
     * @return The associated contenthash.
     */
    function zonehash(bytes32 node) external view returns (bytes memory);
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4;

interface INameResolver {
    event NameChanged(bytes32 indexed node, string name);

    /**
     * Returns the name associated with an CROID node, for reverse records.
     * Defined in EIP181.
     * @param node The CROID node to query.
     * @return The associated name.
     */
    function name(bytes32 node) external view returns (string memory);
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4;

interface IPubkeyResolver {
    event PubkeyChanged(bytes32 indexed node, bytes32 x, bytes32 y);

    /**
     * Returns the SECP256k1 public key associated with an CROID node.
     * Defined in EIP 619.
     * @param node The CROID node to query
     * @return x The X coordinate of the curve point for the public key.
     * @return y The Y coordinate of the curve point for the public key.
     */
    function pubkey(bytes32 node) external view returns (bytes32 x, bytes32 y);
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4;

interface ITextResolver {
    event TextChanged(bytes32 indexed node, string indexed indexedKey, string key);

    /**
     * Returns the text data associated with an CROID node and key.
     * @param node The CROID node to query.
     * @param key The text data key to query.
     * @return The associated text data.
     */
    function text(bytes32 node, string calldata key) external view returns (string memory);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

interface IExtendedResolver {
    function resolve(bytes memory name, bytes memory data)
        external
        view
        returns (bytes memory, address);
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4;

import "@openzeppelin/contracts/utils/introspection/ERC165.sol";

abstract contract ResolverBase is ERC165 {
    function isAuthorised(bytes32 node) internal view virtual returns (bool);

    modifier authorised(bytes32 node) {
        require(isAuthorised(node), "Unauthorised resolver operation");
        _;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)

pragma solidity ^0.8.0;

import "./IERC165.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 *
 * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
 */
abstract contract ERC165 is IERC165 {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../utils/ContextUpgradeable.sol";
import "../proxy/utils/Initializable.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract OwnableUpgradeable is Initializable, ContextUpgradeable {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    function __Ownable_init() internal onlyInitializing {
        __Ownable_init_unchained();
    }

    function __Ownable_init_unchained() internal onlyInitializing {
        _transferOwnership(_msgSender());
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[49] private __gap;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (proxy/utils/UUPSUpgradeable.sol)

pragma solidity ^0.8.0;

import "../../interfaces/draft-IERC1822Upgradeable.sol";
import "../ERC1967/ERC1967UpgradeUpgradeable.sol";
import "./Initializable.sol";

/**
 * @dev An upgradeability mechanism designed for UUPS proxies. The functions included here can perform an upgrade of an
 * {ERC1967Proxy}, when this contract is set as the implementation behind such a proxy.
 *
 * A security mechanism ensures that an upgrade does not turn off upgradeability accidentally, although this risk is
 * reinstated if the upgrade retains upgradeability but removes the security mechanism, e.g. by replacing
 * `UUPSUpgradeable` with a custom implementation of upgrades.
 *
 * The {_authorizeUpgrade} function must be overridden to include access restriction to the upgrade mechanism.
 *
 * _Available since v4.1._
 */
abstract contract UUPSUpgradeable is Initializable, IERC1822ProxiableUpgradeable, ERC1967UpgradeUpgradeable {
    function __UUPSUpgradeable_init() internal onlyInitializing {
    }

    function __UUPSUpgradeable_init_unchained() internal onlyInitializing {
    }
    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable state-variable-assignment
    address private immutable __self = address(this);

    /**
     * @dev Check that the execution is being performed through a delegatecall call and that the execution context is
     * a proxy contract with an implementation (as defined in ERC1967) pointing to self. This should only be the case
     * for UUPS and transparent proxies that are using the current contract as their implementation. Execution of a
     * function through ERC1167 minimal proxies (clones) would not normally pass this test, but is not guaranteed to
     * fail.
     */
    modifier onlyProxy() {
        require(address(this) != __self, "Function must be called through delegatecall");
        require(_getImplementation() == __self, "Function must be called through active proxy");
        _;
    }

    /**
     * @dev Check that the execution is not being performed through a delegate call. This allows a function to be
     * callable on the implementing contract but not through proxies.
     */
    modifier notDelegated() {
        require(address(this) == __self, "UUPSUpgradeable: must not be called through delegatecall");
        _;
    }

    /**
     * @dev Implementation of the ERC1822 {proxiableUUID} function. This returns the storage slot used by the
     * implementation. It is used to validate that the this implementation remains valid after an upgrade.
     *
     * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
     * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
     * function revert if invoked through a proxy. This is guaranteed by the `notDelegated` modifier.
     */
    function proxiableUUID() external view virtual override notDelegated returns (bytes32) {
        return _IMPLEMENTATION_SLOT;
    }

    /**
     * @dev Upgrade the implementation of the proxy to `newImplementation`.
     *
     * Calls {_authorizeUpgrade}.
     *
     * Emits an {Upgraded} event.
     */
    function upgradeTo(address newImplementation) external virtual onlyProxy {
        _authorizeUpgrade(newImplementation);
        _upgradeToAndCallUUPS(newImplementation, new bytes(0), false);
    }

    /**
     * @dev Upgrade the implementation of the proxy to `newImplementation`, and subsequently execute the function call
     * encoded in `data`.
     *
     * Calls {_authorizeUpgrade}.
     *
     * Emits an {Upgraded} event.
     */
    function upgradeToAndCall(address newImplementation, bytes memory data) external payable virtual onlyProxy {
        _authorizeUpgrade(newImplementation);
        _upgradeToAndCallUUPS(newImplementation, data, true);
    }

    /**
     * @dev Function that should revert when `msg.sender` is not authorized to upgrade the contract. Called by
     * {upgradeTo} and {upgradeToAndCall}.
     *
     * Normally, this function will use an xref:access.adoc[access control] modifier such as {Ownable-onlyOwner}.
     *
     * ```solidity
     * function _authorizeUpgrade(address) internal override onlyOwner {}
     * ```
     */
    function _authorizeUpgrade(address newImplementation) internal virtual;

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[50] private __gap;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;
import "../proxy/utils/Initializable.sol";

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract ContextUpgradeable is Initializable {
    function __Context_init() internal onlyInitializing {
    }

    function __Context_init_unchained() internal onlyInitializing {
    }
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[50] private __gap;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (proxy/utils/Initializable.sol)

pragma solidity ^0.8.2;

import "../../utils/AddressUpgradeable.sol";

/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
 * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
 * case an upgrade adds a module that needs to be initialized.
 *
 * For example:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * contract MyToken is ERC20Upgradeable {
 *     function initialize() initializer public {
 *         __ERC20_init("MyToken", "MTK");
 *     }
 * }
 * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
 *     function initializeV2() reinitializer(2) public {
 *         __ERC20Permit_init("MyToken");
 *     }
 * }
 * ```
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 *
 * [CAUTION]
 * ====
 * Avoid leaving a contract uninitialized.
 *
 * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
 * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
 * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * /// @custom:oz-upgrades-unsafe-allow constructor
 * constructor() {
 *     _disableInitializers();
 * }
 * ```
 * ====
 */
abstract contract Initializable {
    /**
     * @dev Indicates that the contract has been initialized.
     * @custom:oz-retyped-from bool
     */
    uint8 private _initialized;

    /**
     * @dev Indicates that the contract is in the process of being initialized.
     */
    bool private _initializing;

    /**
     * @dev Triggered when the contract has been initialized or reinitialized.
     */
    event Initialized(uint8 version);

    /**
     * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
     * `onlyInitializing` functions can be used to initialize parent contracts. Equivalent to `reinitializer(1)`.
     */
    modifier initializer() {
        bool isTopLevelCall = !_initializing;
        require(
            (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),
            "Initializable: contract is already initialized"
        );
        _initialized = 1;
        if (isTopLevelCall) {
            _initializing = true;
        }
        _;
        if (isTopLevelCall) {
            _initializing = false;
            emit Initialized(1);
        }
    }

    /**
     * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
     * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
     * used to initialize parent contracts.
     *
     * `initializer` is equivalent to `reinitializer(1)`, so a reinitializer may be used after the original
     * initialization step. This is essential to configure modules that are added through upgrades and that require
     * initialization.
     *
     * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
     * a contract, executing them in the right order is up to the developer or operator.
     */
    modifier reinitializer(uint8 version) {
        require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
        _initialized = version;
        _initializing = true;
        _;
        _initializing = false;
        emit Initialized(version);
    }

    /**
     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
     * {initializer} and {reinitializer} modifiers, directly or indirectly.
     */
    modifier onlyInitializing() {
        require(_initializing, "Initializable: contract is not initializing");
        _;
    }

    /**
     * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
     * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
     * to any version. It is recommended to use this to lock implementation contracts that are designed to be called
     * through proxies.
     */
    function _disableInitializers() internal virtual {
        require(!_initializing, "Initializable: contract is initializing");
        if (_initialized < type(uint8).max) {
            _initialized = type(uint8).max;
            emit Initialized(type(uint8).max);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @dev Collection of functions related to the address type
 */
library AddressUpgradeable {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly
                /// @solidity memory-safe-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (interfaces/draft-IERC1822.sol)

pragma solidity ^0.8.0;

/**
 * @dev ERC1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified
 * proxy whose upgrades are fully controlled by the current implementation.
 */
interface IERC1822ProxiableUpgradeable {
    /**
     * @dev Returns the storage slot that the proxiable contract assumes is being used to store the implementation
     * address.
     *
     * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
     * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
     * function revert if invoked through a proxy.
     */
    function proxiableUUID() external view returns (bytes32);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (proxy/ERC1967/ERC1967Upgrade.sol)

pragma solidity ^0.8.2;

import "../beacon/IBeaconUpgradeable.sol";
import "../../interfaces/draft-IERC1822Upgradeable.sol";
import "../../utils/AddressUpgradeable.sol";
import "../../utils/StorageSlotUpgradeable.sol";
import "../utils/Initializable.sol";

/**
 * @dev This abstract contract provides getters and event emitting update functions for
 * https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots.
 *
 * _Available since v4.1._
 *
 * @custom:oz-upgrades-unsafe-allow delegatecall
 */
abstract contract ERC1967UpgradeUpgradeable is Initializable {
    function __ERC1967Upgrade_init() internal onlyInitializing {
    }

    function __ERC1967Upgrade_init_unchained() internal onlyInitializing {
    }
    // This is the keccak-256 hash of "eip1967.proxy.rollback" subtracted by 1
    bytes32 private constant _ROLLBACK_SLOT = 0x4910fdfa16fed3260ed0e7147f7cc6da11a60208b5b9406d12a635614ffd9143;

    /**
     * @dev Storage slot with the address of the current implementation.
     * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
     * validated in the constructor.
     */
    bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;

    /**
     * @dev Emitted when the implementation is upgraded.
     */
    event Upgraded(address indexed implementation);

    /**
     * @dev Returns the current implementation address.
     */
    function _getImplementation() internal view returns (address) {
        return StorageSlotUpgradeable.getAddressSlot(_IMPLEMENTATION_SLOT).value;
    }

    /**
     * @dev Stores a new address in the EIP1967 implementation slot.
     */
    function _setImplementation(address newImplementation) private {
        require(AddressUpgradeable.isContract(newImplementation), "ERC1967: new implementation is not a contract");
        StorageSlotUpgradeable.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
    }

    /**
     * @dev Perform implementation upgrade
     *
     * Emits an {Upgraded} event.
     */
    function _upgradeTo(address newImplementation) internal {
        _setImplementation(newImplementation);
        emit Upgraded(newImplementation);
    }

    /**
     * @dev Perform implementation upgrade with additional setup call.
     *
     * Emits an {Upgraded} event.
     */
    function _upgradeToAndCall(
        address newImplementation,
        bytes memory data,
        bool forceCall
    ) internal {
        _upgradeTo(newImplementation);
        if (data.length > 0 || forceCall) {
            _functionDelegateCall(newImplementation, data);
        }
    }

    /**
     * @dev Perform implementation upgrade with security checks for UUPS proxies, and additional setup call.
     *
     * Emits an {Upgraded} event.
     */
    function _upgradeToAndCallUUPS(
        address newImplementation,
        bytes memory data,
        bool forceCall
    ) internal {
        // Upgrades from old implementations will perform a rollback test. This test requires the new
        // implementation to upgrade back to the old, non-ERC1822 compliant, implementation. Removing
        // this special case will break upgrade paths from old UUPS implementation to new ones.
        if (StorageSlotUpgradeable.getBooleanSlot(_ROLLBACK_SLOT).value) {
            _setImplementation(newImplementation);
        } else {
            try IERC1822ProxiableUpgradeable(newImplementation).proxiableUUID() returns (bytes32 slot) {
                require(slot == _IMPLEMENTATION_SLOT, "ERC1967Upgrade: unsupported proxiableUUID");
            } catch {
                revert("ERC1967Upgrade: new implementation is not UUPS");
            }
            _upgradeToAndCall(newImplementation, data, forceCall);
        }
    }

    /**
     * @dev Storage slot with the admin of the contract.
     * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is
     * validated in the constructor.
     */
    bytes32 internal constant _ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;

    /**
     * @dev Emitted when the admin account has changed.
     */
    event AdminChanged(address previousAdmin, address newAdmin);

    /**
     * @dev Returns the current admin.
     */
    function _getAdmin() internal view returns (address) {
        return StorageSlotUpgradeable.getAddressSlot(_ADMIN_SLOT).value;
    }

    /**
     * @dev Stores a new address in the EIP1967 admin slot.
     */
    function _setAdmin(address newAdmin) private {
        require(newAdmin != address(0), "ERC1967: new admin is the zero address");
        StorageSlotUpgradeable.getAddressSlot(_ADMIN_SLOT).value = newAdmin;
    }

    /**
     * @dev Changes the admin of the proxy.
     *
     * Emits an {AdminChanged} event.
     */
    function _changeAdmin(address newAdmin) internal {
        emit AdminChanged(_getAdmin(), newAdmin);
        _setAdmin(newAdmin);
    }

    /**
     * @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy.
     * This is bytes32(uint256(keccak256('eip1967.proxy.beacon')) - 1)) and is validated in the constructor.
     */
    bytes32 internal constant _BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50;

    /**
     * @dev Emitted when the beacon is upgraded.
     */
    event BeaconUpgraded(address indexed beacon);

    /**
     * @dev Returns the current beacon.
     */
    function _getBeacon() internal view returns (address) {
        return StorageSlotUpgradeable.getAddressSlot(_BEACON_SLOT).value;
    }

    /**
     * @dev Stores a new beacon in the EIP1967 beacon slot.
     */
    function _setBeacon(address newBeacon) private {
        require(AddressUpgradeable.isContract(newBeacon), "ERC1967: new beacon is not a contract");
        require(
            AddressUpgradeable.isContract(IBeaconUpgradeable(newBeacon).implementation()),
            "ERC1967: beacon implementation is not a contract"
        );
        StorageSlotUpgradeable.getAddressSlot(_BEACON_SLOT).value = newBeacon;
    }

    /**
     * @dev Perform beacon upgrade with additional setup call. Note: This upgrades the address of the beacon, it does
     * not upgrade the implementation contained in the beacon (see {UpgradeableBeacon-_setImplementation} for that).
     *
     * Emits a {BeaconUpgraded} event.
     */
    function _upgradeBeaconToAndCall(
        address newBeacon,
        bytes memory data,
        bool forceCall
    ) internal {
        _setBeacon(newBeacon);
        emit BeaconUpgraded(newBeacon);
        if (data.length > 0 || forceCall) {
            _functionDelegateCall(IBeaconUpgradeable(newBeacon).implementation(), data);
        }
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function _functionDelegateCall(address target, bytes memory data) private returns (bytes memory) {
        require(AddressUpgradeable.isContract(target), "Address: delegate call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return AddressUpgradeable.verifyCallResult(success, returndata, "Address: low-level delegate call failed");
    }

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[50] private __gap;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (proxy/beacon/IBeacon.sol)

pragma solidity ^0.8.0;

/**
 * @dev This is the interface that {BeaconProxy} expects of its beacon.
 */
interface IBeaconUpgradeable {
    /**
     * @dev Must return an address that can be used as a delegate call target.
     *
     * {BeaconProxy} will check that this address is a contract.
     */
    function implementation() external view returns (address);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/StorageSlot.sol)

pragma solidity ^0.8.0;

/**
 * @dev Library for reading and writing primitive types to specific storage slots.
 *
 * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
 * This library helps with reading and writing to such slots without the need for inline assembly.
 *
 * The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
 *
 * Example usage to set ERC1967 implementation slot:
 * ```
 * contract ERC1967 {
 *     bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
 *
 *     function _getImplementation() internal view returns (address) {
 *         return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
 *     }
 *
 *     function _setImplementation(address newImplementation) internal {
 *         require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
 *         StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
 *     }
 * }
 * ```
 *
 * _Available since v4.1 for `address`, `bool`, `bytes32`, and `uint256`._
 */
library StorageSlotUpgradeable {
    struct AddressSlot {
        address value;
    }

    struct BooleanSlot {
        bool value;
    }

    struct Bytes32Slot {
        bytes32 value;
    }

    struct Uint256Slot {
        uint256 value;
    }

    /**
     * @dev Returns an `AddressSlot` with member `value` located at `slot`.
     */
    function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `BooleanSlot` with member `value` located at `slot`.
     */
    function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
     */
    function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Uint256Slot` with member `value` located at `slot`.
     */
    function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 */
interface IERC20Permit {
    /**
     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
     * given ``owner``'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    /**
     * @dev Returns the current nonce for `owner`. This value must be
     * included whenever a signature is generated for {permit}.
     *
     * Every successful call to {permit} increases ``owner``'s nonce by one. This
     * prevents a signature from being used multiple times.
     */
    function nonces(address owner) external view returns (uint256);

    /**
     * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view returns (bytes32);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `from` to `to` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) external returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 *
 * _Available since v4.1._
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the symbol of the token.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the decimals places of the token.
     */
    function decimals() external view returns (uint8);
}

{
  "optimizer": {
    "enabled": true,
    "runs": 10000
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "libraries": {}
}

[{"inputs":[{"internalType":"contract ICROIDToken","name":"_token","type":"address"},{"internalType":"contract IBaseRegistrar","name":"_registrar","type":"address"},{"internalType":"contract IPriceOracle","name":"_priceOracle","type":"address"},{"internalType":"contract ReverseRegistrar","name":"_reverseRegistrar","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"blocklist","type":"address"}],"name":"BlocklistChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"bool","name":"required","type":"bool"}],"name":"ChanceRequiredChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"string","name":"name","type":"string"},{"indexed":true,"internalType":"bytes32","name":"label","type":"bytes32"},{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":false,"internalType":"uint256","name":"baseCost","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"premium","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"expires","type":"uint256"}],"name":"NameRegistered","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"string","name":"name","type":"string"},{"indexed":true,"internalType":"bytes32","name":"label","type":"bytes32"},{"indexed":false,"internalType":"uint256","name":"cost","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"expires","type":"uint256"}],"name":"NameRenewed","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"priceOracle","type":"address"}],"name":"PriceOracleChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"revenueDistributor","type":"address"}],"name":"RevenueDistributorChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"reverseRegistrar","type":"address"}],"name":"ReverseRegistrarChanged","type":"event"},{"inputs":[],"name":"MAX_COMMITMENT_AGE","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MIN_COMMITMENT_AGE","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MIN_REGISTRATION_DURATION","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"name","type":"string"}],"name":"available","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"blocklist","outputs":[{"internalType":"contract Blocklist","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"chanceRequired","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"commitment","type":"bytes32"}],"name":"commit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"name":"commitments","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"distributeHeldRevenue","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"name","type":"string"},{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"duration","type":"uint256"},{"internalType":"bytes32","name":"secret","type":"bytes32"},{"internalType":"address","name":"resolver","type":"address"},{"internalType":"bytes[]","name":"data","type":"bytes[]"},{"internalType":"bool","name":"reverseRecord","type":"bool"}],"name":"makeCommitment","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"maxCommitmentAge","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"minCommitmentAge","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"priceOracle","outputs":[{"internalType":"contract IPriceOracle","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"name","type":"string"},{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"duration","type":"uint256"},{"internalType":"bytes32","name":"secret","type":"bytes32"},{"internalType":"address","name":"resolver","type":"address"},{"internalType":"bytes[]","name":"data","type":"bytes[]"},{"internalType":"bool","name":"reverseRecord","type":"bool"}],"name":"register","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"registrar","outputs":[{"internalType":"contract IBaseRegistrar","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"name","type":"string"},{"internalType":"uint256","name":"duration","type":"uint256"}],"name":"renew","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"name","type":"string"},{"internalType":"uint256","name":"duration","type":"uint256"}],"name":"rentPrice","outputs":[{"components":[{"internalType":"uint256","name":"base","type":"uint256"},{"internalType":"uint256","name":"premium","type":"uint256"}],"internalType":"struct IPriceOracle.Price","name":"price","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"revenueDistributor","outputs":[{"internalType":"contract IRevenueDistributor","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"reverseRegistrar","outputs":[{"internalType":"contract ReverseRegistrar","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_blocklist","type":"address"}],"name":"setBlocklist","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_required","type":"bool"}],"name":"setChanceRequired","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_priceOracle","type":"address"}],"name":"setPriceOracle","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_revenueDistributor","type":"address"}],"name":"setRevenueDistributor","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_reverseRegistrar","type":"address"}],"name":"setReverseRegistrar","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"name","type":"string"}],"name":"strLength","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceID","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"token","outputs":[{"internalType":"contract ICROIDToken","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"name","type":"string"}],"name":"valid","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"}]

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000000000000000000000000cbf0adea24fd5f32c6e7f0474f0d1b94ace4e2e7000000000000000000000000f884647dfa84696d9373f36ee413ccc48093f924000000000000000000000000c194bf150f458d6f04c135c9ba1ff0e4d10a6d6100000000000000000000000082b28e5a2444d22af36e1bb40cfd1b3e155d9486

-----Decoded View---------------
Arg [0] : _token (address): 0xcbf0adea24fd5f32c6e7f0474f0d1b94ace4e2e7
Arg [1] : _registrar (address): 0xf884647dfa84696d9373f36ee413ccc48093f924
Arg [2] : _priceOracle (address): 0xc194bf150f458d6f04c135c9ba1ff0e4d10a6d61
Arg [3] : _reverseRegistrar (address): 0x82b28e5a2444d22af36e1bb40cfd1b3e155d9486

-----Encoded View---------------
4 Constructor Arguments found :
Arg [0] : 000000000000000000000000cbf0adea24fd5f32c6e7f0474f0d1b94ace4e2e7
Arg [1] : 000000000000000000000000f884647dfa84696d9373f36ee413ccc48093f924
Arg [2] : 000000000000000000000000c194bf150f458d6f04c135c9ba1ff0e4d10a6d61
Arg [3] : 00000000000000000000000082b28e5a2444d22af36e1bb40cfd1b3e155d9486